Given the following code, which of the below definitions for a child class ChocolateBar is valid: class CandyBar $\{$

private double cost;

private String manufacturer;

private String name;

public CandyBar$($double c$,$ String m$,$ String n$)\{$

cost$=$c;

manufacturer$=$m;

name$=$n;

$\}$

public double getcost$()\{$

return cost;

$\}$

$\}$